Improvement in window-screens



.I. A. THOMPSON.

Window-Screens.

N0. 140,96], Patentedlu|y15,1873.

Inventor.

Witnesses:

.dttomeys.

UNITED STATES PATENT OFFICE.

JOHN A. THOMPSON, OF READINGTON, NEW JERSEY.

IMPROVEMENT IN WINDOW-SCREENS.

Specification forming part of Letters. Patent No. 140,967, dated July15, 1873 application filed May 24, 1873.

To all whom it may concern:

Be it known that I, J OHN A. THOMPSON, of Readington, in the county ofHunterdon and in the State of New Jersey, have invented ceritsconstruction and operation, referring to the annexed drawing, in which-Figure 1 is a perspective View, and Fig. 2 a longitudinal verticalsection, of my adjustable window-screen.

A represents arectan gular three-sided frame, made of wood or othersuitable material. The top and bottom bars of this frame are made toslide in boxes or casings B B, attached to the ends of a vertical woodenbar, 0. These boxes or casings may be made of tin, copper, or any otherlight metal, and are slotted longitudinally on their inner sides, asshown at a a. Through the slots (0 a set-scrcws b b are passed into thetop and bottom bars of the frame A to hold the same at any pointdesired. The wooden bar 0 is cut out on the inner side, as

'turn'the roller.

shown, for the reception of an upright roller, D, having its hearings inthe remaining part of the bar 0 and boxes B. One journal, d, of theroller D is made square on the end and a recess formed around the same.for the insertion of a, key on said journal with which to, p a

On the roller D is wound awire screen, G, one edge of said screen beingattached to the roller, and the other edge to the vertical bar of theframe A, while the upper and lower edges of the screen are concealedwithin the boxes or casings B B.

The entire device, thus constructed,is to be placed in a window, thesash resting on the same,when the screen may be extended so as to suitany width of window; or it may be contracted so as to leave more or lessspace at the side, if so desired.

Having thus fully described my invention, what I claim as new, anddesire to secure by Letters Patent, is-

The combination of the three-sided frame A, sheetmetal boxes B B havinglongitudinal slots at a, the set-screws b 12, bar (J, roller D withsquare journal 01, and screen G, all constructed and arrangedsubstantially as and for 2 the purposes herein set forth.

In testimony that I claim the foregoing I have hereunto set my hand this22d day of May, 1873.

JOHN A. THOMPSON. Vitnesses:

A. N. MARE, (J. L. EVERT.

